Certificate of Analysis
| Product Name: | Sunset yellow |
| Catalog Number: | M45011 |
| CAS Number: | 2783-94-0 |
Physical and Chemical Properties
| Formula: | C16H10N2Na2O7S2 |
| Molecular Weight: | 452.37 |
| Form: | Solid |
| Solubility: | Water 90 mg/mL (ultrasonic) |
| Storage: | 4°C, protect from light, dry, sealed |
| Chemical Structure: |  |
Analytical Data
| QC Standard: | ≥98.0% |
| H-NMR: | Consistent with structure |
Product Information
| Description: | Sunset Yellow FCF (Orange Yellow S) is a petroleum-derived orange azo dye with a pH dependent maximum absorption at about 480 nm at pH 1 and 443 nm at pH 13. |
| Stability and Solubility Advice: | Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide. We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details. |